24-02-2012, 03:50 PM
SALIENT FEATURES OF 500 MW BOILER
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FIRST PASS:
Vertically Downward Expansion at Ring Header (10.250mtr elev.) : 330mm
Horizontal Expansion at Ring Header
(10.250mtr elev.) : 36mm
SECOND PASS :
Vertically Downward Expansion at Ring Header
(44.060mtr elev.) : 174mm
Horizontal Expansion at Ring Header
(44.060mtr elev.) : 58mm
IMPORTANT FEATURES OF 500 MW BOILER
C.C. PUMPS
ORIFICE PLATES IN BOTTOM RING HEADER
RIFLED TUBES IN WATER WALLS
DIVISIONAL SUPERHEATERS
ECO LINK CONNECTIONS FROM BOTTOM OF BOILER DRUM
DOWN COMMERS CONNECTION TO ONLY BOTTOM RING HEADER.
ECO RECIRCULATION CONNECTION TO BOTTOM RING HEADER REAR.
2 NOS. TRISECTOR TYPE AIR PREHEATERS.
8 NOS. BOWL MILLS ( XRP 1043 TYPE) & GRAVEMETRIC 36” SIVE FEEDER ( FEEDER LOCATION 21 ML )
4 NOS OIL ELEVATION & 8 NOS. COAL ELEVATION.
2 NOS. I.D FANS, 2 NOS. F.D.FANS, 2 NOS. SEAL AIR FAN, 11 SILENCERS , 20 SAFETY VALVES
HEA INNITERS.
COAL CONSUMPTION – 8400 T/HR.
